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result sql = BACKGROUND : Osteoarthritis (OA) of the knee is the most common form of arthritis and is a major contributor to functional impairment and reduced independence in older adults. In Japan, knee OA is a frequent cause of pain and disability, but few epidemiological studies have examined the demographic or lifestyle factors that influence OA of the knee. We examine the risk factors for OA of the knee among Japanese community-dwelling women aged 40-89 years (mean age 64.2, SD 9.6 years).
METHODS : Anteroposterior weight-bearing knee radiographs were graded according to the criteria described by Kellgren-Lawrence (K/L). We defined knee OA as a K/L grade of 2 or higher (using a 0-4 scale) based on the plain radiographs. History of knee injury, type of occupation, and daily intake of antioxidant nutrients including vitamin C and carotene were obtained from questionnaires.
RESULTS : Among the 582 subjects, 195 women (33.5%) suffered from knee OA. Logistic regression analysis showed that older age [odds ratio (OR) 1.8, 95% confidence interval (95% CI) 1.6-2.1 per 5-year increase], higher body mass index (OR 2.2, 95% CI 1.7-3.0 per 5-unit increase) and previous knee injury (OR 3.1, 95% CI 1.7-5.6) were associated with knee OA. The occupation of farming and intake of antioxidant nutrients were not associated with knee OA.
CONCLUSION : Older age, obesity and previous knee injury represent independent risk factors for knee OA among Japanese women.
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result sql = Factors associated with radiographic osteoarthritis of the knee among community-dwelling Japanese women: the Hizen-Oshima Study.
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char = ;code = 32
char = (;code = 40
char = O;code = 79
char = A;code = 65
char = );code = 41
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = j;code = 106
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = f;code = 102
char = u;code = 117
char = n;code = 110
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = i;code = 105
char = m;code = 109
char = p;code = 112
char = a;code = 97
char = i;code = 105
char = r;code = 114
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = p;code = 112
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = l;code = 108
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = d;code = 100
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = n;code = 110
char = ;code = 32
char = J;code = 74
char = a;code = 97
char = p;code = 112
char = a;code = 97
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = O;code = 79
char = A;code = 65
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = e;code = 101
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = s;code = 115
char = a;code = 97
char = b;code = 98
char = i;code = 105
char = l;code = 108
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = f;code = 102
char = e;code = 101
char = w;code = 119
char = ;code = 32
char = e;code = 101
char = p;code = 112
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = m;code = 109
char = i;code = 105
char = o;code = 111
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = p;code = 112
char = h;code = 104
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = f;code = 102
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = y;code = 121
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = f;code = 102
char = l;code = 108
char = u;code = 117
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = O;code = 79
char = A;code = 65
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = .;code = 46
char = ;code = 32
char = W;code = 87
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = i;code = 105
char = s;code = 115
char = k;code = 107
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = O;code = 79
char = A;code = 65
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = J;code = 74
char = a;code = 97
char = p;code = 112
char = a;code = 97
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = m;code = 109
char = u;code = 117
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = -;code = 45
char = d;code = 100
char = w;code = 119
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = w;code = 119
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = 4;code = 52
char = 0;code = 48
char = -;code = 45
char = 8;code = 56
char = 9;code = 57
char = ;code = 32
char = y;code = 121
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = m;code = 109
char = e;code = 101
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = ;code = 32
char = 6;code = 54
char = 4;code = 52
char = .;code = 46
char = 2;code = 50
char = ,;code = 44
char = ;code = 32
char = S;code = 83
char = D;code = 68
char = ;code = 32
char = 9;code = 57
char = .;code = 46
char = 6;code = 54
char = ;code = 32
char = y;code = 121
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = s;code = 115
char = );code = 41
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = M;code = 77
char = E;code = 69
char = T;code = 84
char = H;code = 72
char = O;code = 79
char = D;code = 68
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = A;code = 65
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = t;code = 116
char = -;code = 45
char = b;code = 98
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = o;code = 111
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = p;code = 112
char = h;code = 104
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = r;code = 114
char = i;code = 105
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = r;code = 114
char = i;code = 105
char = b;code = 98
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = K;code = 75
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = g;code = 103
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = -;code = 45
char = L;code = 76
char = a;code = 97
char = w;code = 119
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = K;code = 75
char = /;code = 47
char = L;code = 76
char = );code = 41
char = .;code = 46
char = ;code = 32
char = W;code = 87
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = f;code = 102
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = O;code = 79
char = A;code = 65
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = K;code = 75
char = /;code = 47
char = L;code = 76
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = 2;code = 50
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = h;code = 104
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = (;code = 40
char = u;code = 117
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = 0;code = 48
char = -;code = 45
char = 4;code = 52
char = ;code = 32
char = s;code = 115
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = e;code = 101
char = );code = 41
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = o;code = 111
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = p;code = 112
char = h;code = 104
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = H;code = 72
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = j;code = 106
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = y;code = 121
char = p;code = 112
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = o;code = 111
char = c;code = 99
char = c;code = 99
char = u;code = 117
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = i;code = 105
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = k;code = 107
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = d;code = 100
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = n;code = 110
char = u;code = 117
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = C;code = 67
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = b;code = 98
char = t;code = 116
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = n;code = 110
char = a;code = 97
char = i;code = 105
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = R;code = 82
char = E;code = 69
char = S;code = 83
char = U;code = 85
char = L;code = 76
char = T;code = 84
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = A;code = 65
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = 5;code = 53
char = 8;code = 56
char = 2;code = 50
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = b;code = 98
char = j;code = 106
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = 1;code = 49
char = 9;code = 57
char = 5;code = 53
char = ;code = 32
char = w;code = 119
char = o;code = 111
char = m;code = 109
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result sql = BACKGROUND : Osteoarthritis (OA) of the knee is the most common form of arthritis and is a major contributor to functional impairment and reduced independence in older adults. In Japan, knee OA is a frequent cause of pain and disability, but few epidemiological studies have examined the demographic or lifestyle factors that influence OA of the knee. We examine the risk factors for OA of the knee among Japanese community-dwelling women aged 40-89 years (mean age 64.2, SD 9.6 years).
METHODS : Anteroposterior weight-bearing knee radiographs were graded according to the criteria described by Kellgren-Lawrence (K/L). We defined knee OA as a K/L grade of 2 or higher (using a 0-4 scale) based on the plain radiographs. History of knee injury, type of occupation, and daily intake of antioxidant nutrients including vitamin C and carotene were obtained from questionnaires.
RESULTS : Among the 582 subjects, 195 women (33.5%) suffered from knee OA. Logistic regression analysis showed that older age [odds ratio (OR) 1.8, 95% confidence interval (95% CI) 1.6-2.1 per 5-year increase], higher body mass index (OR 2.2, 95% CI 1.7-3.0 per 5-unit increase) and previous knee injury (OR 3.1, 95% CI 1.7-5.6) were associated with knee OA. The occupation of farming and intake of antioxidant nutrients were not associated with knee OA.
CONCLUSION : Older age, obesity and previous knee injury represent independent risk factors for knee OA among Japanese women.
Publication: J Orthop Sci 2011 Jan ;16(1)::51-5. :doi: 10.1007/s00776-010-0013-3.
Publication Date: 2011 Jan
Study Author(s): Hashikawa, Takeshi;Osaki, Makoto;Ye, Zhaojia;Tomita, Masato;Abe, Yasuyo;Honda, Sumihisa;Takamura, Noboru;Shindo, Hiroyuki;Aoyagi, Kiyoshi;
Institution: Department of Orthopaedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
Shortcut link to this study:
Publication Date: 2011 Jan
Study Author(s): Hashikawa, Takeshi;Osaki, Makoto;Ye, Zhaojia;Tomita, Masato;Abe, Yasuyo;Honda, Sumihisa;Takamura, Noboru;Shindo, Hiroyuki;Aoyagi, Kiyoshi;
Institution: Department of Orthopaedic Surgery, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
Shortcut link to this study:
BACKGROUND : Osteoarthritis (OA) of the knee is the most common form of arthritis and is a major contributor to functional impairment and reduced independence in older adults. In Japan, knee OA is a frequent cause of pain and disability, but few epidemiological studies have examined the demographic or lifestyle factors that influence OA of the knee. We examine the risk factors for OA of the knee among Japanese community-dwelling women aged 40-89 years (mean age 64.2, SD 9.6 years).
METHODS : Anteroposterior weight-bearing knee radiographs were graded according to the criteria described by Kellgren-Lawrence (K/L). We defined knee OA as a K/L grade of 2 or higher (using a 0-4 scale) based on the plain radiographs. History of knee injury, type of occupation, and daily intake of antioxidant nutrients including vitamin C and carotene were obtained from questionnaires.
RESULTS : Among the 582 subjects, 195 women (33.5%) suffered from knee OA. Logistic regression analysis showed that older age [odds ratio (OR) 1.8, 95% confidence interval (95% CI) 1.6-2.1 per 5-year increase], higher body mass index (OR 2.2, 95% CI 1.7-3.0 per 5-unit increase) and previous knee injury (OR 3.1, 95% CI 1.7-5.6) were associated with knee OA. The occupation of farming and intake of antioxidant nutrients were not associated with knee OA.
CONCLUSION : Older age, obesity and previous knee injury represent independent risk factors for knee OA among Japanese women.
METHODS : Anteroposterior weight-bearing knee radiographs were graded according to the criteria described by Kellgren-Lawrence (K/L). We defined knee OA as a K/L grade of 2 or higher (using a 0-4 scale) based on the plain radiographs. History of knee injury, type of occupation, and daily intake of antioxidant nutrients including vitamin C and carotene were obtained from questionnaires.
RESULTS : Among the 582 subjects, 195 women (33.5%) suffered from knee OA. Logistic regression analysis showed that older age [odds ratio (OR) 1.8, 95% confidence interval (95% CI) 1.6-2.1 per 5-year increase], higher body mass index (OR 2.2, 95% CI 1.7-3.0 per 5-unit increase) and previous knee injury (OR 3.1, 95% CI 1.7-5.6) were associated with knee OA. The occupation of farming and intake of antioxidant nutrients were not associated with knee OA.
CONCLUSION : Older age, obesity and previous knee injury represent independent risk factors for knee OA among Japanese women.
PMID: 21293895
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